/**
* <b>Description:</b><br> 
* @author Reading.Reagan</a>
* @version 1.0
* @Note
* <b>ProjectName:</b> thumbnail
* <br><b>PackageName:</b> com.golden.thumbnail.util
* <br><b>ClassName:</b> package-info
* <br><b>Date:</b> 2018年10月11日 下午3:15:24
*/
package com.golden.thumbnail.util;


import java.net.InetAddress;   
import java.net.UnknownHostException;   
import java.text.DecimalFormat;   
  
import org.hyperic.sigar.CpuInfo;   
import org.hyperic.sigar.CpuPerc;   
import org.hyperic.sigar.FileSystem;   
import org.hyperic.sigar.FileSystemUsage;   
import org.hyperic.sigar.Mem;   
import org.hyperic.sigar.NetFlags;   
import org.hyperic.sigar.NetInterfaceConfig;   
import org.hyperic.sigar.NetInterfaceStat;   
import org.hyperic.sigar.OperatingSystem;   
import org.hyperic.sigar.Sigar;   
import org.hyperic.sigar.SigarException;   
import org.hyperic.sigar.SigarNotImplementedException;   
import org.hyperic.sigar.Swap;   
  
public class SysInfo {   
  
    public static void main(String [] args) throws Exception{   
        SysInfo s =new SysInfo();   
        System.out.println("CPU个数："+s.getCpuCount());   
        s.getCpuTotal();   
        s.testCpuPerc();   
        s.getPhysicalMemory();   
        s.testWho();   
        s.testFileSystemInfo();   
        s.testGetOSInfo();   
    }   
    /**  
     * 1.CPU资源信息  
     */  
       
    // a)CPU数量（单位：个）  
    public static int getCpuCount() throws SigarException {   
        Sigar sigar = new Sigar();   
        try {   
            return sigar.getCpuInfoList().length;   
        } finally {   
            sigar.close();   
        }   
    }   
  
    // b)CPU的总量（单位：HZ）及CPU的相关信息  
    public void getCpuTotal() {   
        Sigar sigar = new Sigar();   
        CpuInfo[] infos;   
        try {   
            infos = sigar.getCpuInfoList();   
            for (int i = 0; i < infos.length; i++) {// 不管是单块CPU还是多CPU都适用  
                CpuInfo info = infos[i];   
                System.out.println("CPU的总量:" + info.getMhz());// CPU的总量MHz  
                System.out.println("获得CPU的卖主：" + info.getVendor());// 获得CPU的卖主，如：Intel  
                System.out.println("CPU的类别：" + info.getModel());// 获得CPU的类别，如：Celeron  
                System.out.println("缓冲存储器数量：" + info.getCacheSize());// 缓冲存储器数量  
                System.out.println("**************");   
            }   
        } catch (SigarException e) {   
            e.printStackTrace();   
        }   
    }   
  
    // c)CPU的用户使用量、系统使用剩余量、总的剩余量、总的使用占用量等（单位：100%）  
    public void testCpuPerc() {   
        Sigar sigar = new Sigar();   
        // 方式一，主要是针对一块CPU的情况  
        CpuPerc cpu;   
        try {   
            cpu = sigar.getCpuPerc();   
            printCpuPerc(cpu);   
        } catch (SigarException e) {   
            e.printStackTrace();   
        }   
        // 方式二，不管是单块CPU还是多CPU都适用  
        CpuPerc cpuList[] = null;   
        try {   
            cpuList = sigar.getCpuPercList();   
        } catch (SigarException e) {   
            e.printStackTrace();   
            return;   
        }   
        for (int i = 0; i < cpuList.length; i++) {   
            printCpuPerc(cpuList[i]);   
        }   
    }   
  
    private void printCpuPerc(CpuPerc cpu) {   
        System.out.println("用户使用率:" + CpuPerc.format(cpu.getUser()));// 用户使用率  
        System.out.println("系统使用率:" + CpuPerc.format(cpu.getSys()));// 系统使用率  
        System.out.println("当前等待率:" + CpuPerc.format(cpu.getWait()));// 当前等待率  
        System.out.println("Nice :" + CpuPerc.format(cpu.getNice()));//  
        System.out.println("当前空闲率:" + CpuPerc.format(cpu.getIdle()));// 当前空闲率  
        System.out.println("总的使用率:" + CpuPerc.format(cpu.getCombined()));// 总的使用率  
        System.out.println("**************");   
    }   
  
    /**  
     * 2.内存资源信息  
     *  
     */  
       
    public void getPhysicalMemory() {   
        // a)物理内存信息  
        DecimalFormat df = new DecimalFormat("#0.00");   
        Sigar sigar = new Sigar();   
        Mem mem;   
        try {   
            mem = sigar.getMem();   
            // 内存总量  
            System.out.println("内存总量：" + df.format((float)mem.getTotal() / 1024/1024/1024) + "G");   
            // 当前内存使用量  
            System.out.println("当前内存使用量：" + df.format((float)mem.getUsed() / 1024/1024/1024) + "G");   
            // 当前内存剩余量  
            System.out.println("当前内存剩余量：" + df.format((float)mem.getFree() / 1024/1024/1024) + "G");   
            // b)系统页面文件交换区信息  
            Swap swap = sigar.getSwap();   
            // 交换区总量  
            System.out.println("交换区总量：" + df.format((float)swap.getTotal() / 1024/1024/1024) + "G");   
            // 当前交换区使用量  
            System.out.println("当前交换区使用量：" + df.format((float)swap.getUsed() / 1024/1024/1024) + "G");   
            // 当前交换区剩余量  
            System.out.println("当前交换区剩余量：" + df.format((float)swap.getFree() / 1024/1024/1024) + "G");   
        } catch (SigarException e) {   
            e.printStackTrace();   
        }   
    }   
  
    /**  
     * 3.操作系统信息  
     *   
     */  
       
    // a)取到当前操作系统的名称：  
    public String getPlatformName() {   
        String hostname = "";   
        try {   
            hostname = InetAddress.getLocalHost().getHostName();   
        } catch (Exception exc) {   
            Sigar sigar = new Sigar();   
            try {   
                hostname = sigar.getNetInfo().getHostName();   
            } catch (SigarException e) {   
                hostname = "localhost.unknown";   
            } finally {   
                sigar.close();   
            }   
        }   
        return hostname;   
    }   
  
    // b)取当前操作系统的信息  
    public void testGetOSInfo() {   
        OperatingSystem OS = OperatingSystem.getInstance();   
        // 操作系统内核类型如： 386、486、586等x86  
        System.out.println("OS.getArch() = " + OS.getArch());   
        System.out.println("OS.getCpuEndian() = " + OS.getCpuEndian());//  
        System.out.println("OS.getDataModel() = " + OS.getDataModel());//  
        // 系统描述  
        System.out.println("OS.getDescription() = " + OS.getDescription());   
        System.out.println("OS.getMachine() = " + OS.getMachine());//  
        // 操作系统类型  
        System.out.println("OS.getName() = " + OS.getName());   
        System.out.println("OS.getPatchLevel() = " + OS.getPatchLevel());//  
        // 操作系统的卖主  
        System.out.println("OS.getVendor() = " + OS.getVendor());   
        // 卖主名称  
        System.out   
                .println("OS.getVendorCodeName() = " + OS.getVendorCodeName());   
        // 操作系统名称  
        System.out.println("OS.getVendorName() = " + OS.getVendorName());   
        // 操作系统卖主类型  
        System.out.println("OS.getVendorVersion() = " + OS.getVendorVersion());   
        // 操作系统的版本号  
        System.out.println("OS.getVersion() = " + OS.getVersion());   
    }   
  
    // c)取当前系统进程表中的用户信息  
    public void testWho() {   
        try {   
            Sigar sigar = new Sigar();   
            org.hyperic.sigar.Who[] who = sigar.getWhoList();   
            if (who != null && who.length > 0) {   
                for (int i = 0; i < who.length; i++) {   
                    System.out.println("\n~~~~~~~~~" + String.valueOf(i)   
                            + "~~~~~~~~~");   
                    org.hyperic.sigar.Who _who = who[i];   
                    System.out.println("获取设备getDevice() = " + _who.getDevice());   
                    System.out.println("获得主机getHost() = " + _who.getHost());   
                    System.out.println("获取的时间getTime() = " + _who.getTime());   
                    // 当前系统进程表中的用户名  
                    System.out.println("获取用户getUser() = " + _who.getUser());   
                }   
            }   
        } catch (SigarException e) {   
            e.printStackTrace();   
        }   
    }   
  
    // 4.资源信息（主要是硬盘）  
    // a)取硬盘已有的分区及其详细信息（通过sigar.getFileSystemList()来获得FileSystem列表对象，然后对其进行编历）：  
    public void testFileSystemInfo() throws Exception {   
        Sigar sigar = new Sigar();   
        FileSystem fslist[] = sigar.getFileSystemList();   
        DecimalFormat df = new DecimalFormat("#0.00");   
        // String dir = System.getProperty("user.home");// 当前用户文件夹路径  
        for (int i = 0; i < fslist.length; i++) {   
            System.out.println("\n~~~~~~~~~~" + i + "~~~~~~~~~~");   
            FileSystem fs = fslist[i];   
            // 分区的盘符名称  
            System.out.println("fs.getDevName() = " + fs.getDevName());   
            // 分区的盘符名称  
            System.out.println("fs.getDirName() = " + fs.getDirName());   
            System.out.println("fs.getFlags() = " + fs.getFlags());//  
            // 文件系统类型，比如 FAT32、NTFS  
            System.out.println("fs.getSysTypeName() = " + fs.getSysTypeName());   
            // 文件系统类型名，比如本地硬盘、光驱、网络文件系统等  
            System.out.println("fs.getTypeName() = " + fs.getTypeName());   
            // 文件系统类型  
            System.out.println("fs.getType() = " + fs.getType());   
            FileSystemUsage usage = null;   
            try {   
                usage = sigar.getFileSystemUsage(fs.getDirName());   
            } catch (SigarException e) {   
                if (fs.getType() == 2)   
                    throw e;   
                continue;   
            }   
            switch (fs.getType()) {   
            case 0: // TYPE_UNKNOWN ：未知  
                break;   
            case 1: // TYPE_NONE  
                break;   
            case 2: // TYPE_LOCAL_DISK : 本地硬盘  
                // 文件系统总大小  
                System.out.println(" Total = " + df.format((float)usage.getTotal()/1024/1024) + "G");   
                // 文件系统剩余大小  
                System.out.println(" Free = " + df.format((float)usage.getFree()/1024/1024) + "G");   
                // 文件系统可用大小  
                System.out.println(" Avail = " + df.format((float)usage.getAvail()/1024/1024) + "G");   
                // 文件系统已经使用量  
                System.out.println(" Used = " + df.format((float)usage.getUsed()/1024/1024) + "G");   
                double usePercent = usage.getUsePercent() * 100D;   
                // 文件系统资源的利用率  
                System.out.println(" Usage = " + df.format(usePercent) + "%");   
                break;   
            case 3:// TYPE_NETWORK ：网络  
                break;   
            case 4:// TYPE_RAM_DISK ：闪存  
                break;   
            case 5:// TYPE_CDROM ：光驱  
                break;   
            case 6:// TYPE_SWAP ：页面交换  
                break;   
            }   
            System.out.println(" DiskReads = " + usage.getDiskReads());   
            System.out.println(" DiskWrites = " + usage.getDiskWrites());   
        }   
        return;   
    }   
  
    // 5.网络信息   
    // a)当前机器的正式域名  
    public String getFQDN() {   
        Sigar sigar = null;   
        try {   
            return InetAddress.getLocalHost().getCanonicalHostName();   
        } catch (UnknownHostException e) {   
            try {   
                sigar = new Sigar();   
                return sigar.getFQDN();   
            } catch (SigarException ex) {   
                return null;   
            } finally {   
                sigar.close();   
            }   
        }   
    }   
  
    // b)取到当前机器的IP地址  
    public String getDefaultIpAddress() {   
        String address = null;   
        try {   
            address = InetAddress.getLocalHost().getHostAddress();   
            // 没有出现异常而正常当取到的IP时，如果取到的不是网卡循回地址时就返回  
            // 否则再通过Sigar工具包中的方法来获取  
            if (!NetFlags.LOOPBACK_ADDRESS.equals(address)) {   
                return address;   
            }   
        } catch (UnknownHostException e) {   
            // hostname not in DNS or /etc/hosts  
        }   
        Sigar sigar = new Sigar();   
        try {   
            address = sigar.getNetInterfaceConfig().getAddress();   
        } catch (SigarException e) {   
            address = NetFlags.LOOPBACK_ADDRESS;   
        } finally {   
            sigar.close();   
        }   
        return address;   
    }   
  
    // c)取到当前机器的MAC地址  
    public String getMAC() {   
        Sigar sigar = null;   
        try {   
            sigar = new Sigar();   
            String[] ifaces = sigar.getNetInterfaceList();   
            String hwaddr = null;   
            for (int i = 0; i < ifaces.length; i++) {   
                NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);   
                if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress())   
                        || (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0  
                        || NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {   
                    continue;   
                }   
                /* 
                 * 如果存在多张网卡包括虚拟机的网卡，默认只取第一张网卡的MAC地址，如果要返回所有的网卡（包括物理的和虚拟的）则可以修改方法的返回类型为数组或Collection 
                 * ，通过在for循环里取到的多个MAC地址。 
                 */  
                hwaddr = cfg.getHwaddr();   
                break;   
            }   
            return hwaddr != null ? hwaddr : null;   
        } catch (Exception e) {   
            return null;   
        } finally {   
            if (sigar != null)   
                sigar.close();   
        }   
    }   
  
    // d)获取网络流量等信息  
    public void testNetIfList() throws Exception {   
        Sigar sigar = new Sigar();   
        String ifNames[] = sigar.getNetInterfaceList();   
        for (int i = 0; i < ifNames.length; i++) {   
            String name = ifNames[i];   
            NetInterfaceConfig ifconfig = sigar.getNetInterfaceConfig(name);   
            print("\nname = " + name);// 网络设备名  
            print("Address = " + ifconfig.getAddress());// IP地址  
            print("Netmask = " + ifconfig.getNetmask());// 子网掩码  
            if ((ifconfig.getFlags() & 1L) <= 0L) {   
                print("!IFF_UP...skipping getNetInterfaceStat");   
                continue;   
            }   
            try {   
                NetInterfaceStat ifstat = sigar.getNetInterfaceStat(name);   
                print("RxPackets = " + ifstat.getRxPackets());// 接收的总包裹数  
                print("TxPackets = " + ifstat.getTxPackets());// 发送的总包裹数  
                print("RxBytes = " + ifstat.getRxBytes());// 接收到的总字节数  
                print("TxBytes = " + ifstat.getTxBytes());// 发送的总字节数  
                print("RxErrors = " + ifstat.getRxErrors());// 接收到的错误包数  
                print("TxErrors = " + ifstat.getTxErrors());// 发送数据包时的错误数  
                print("RxDropped = " + ifstat.getRxDropped());// 接收时丢弃的包数  
                print("TxDropped = " + ifstat.getTxDropped());// 发送时丢弃的包数  
            } catch (SigarNotImplementedException e) {   
            } catch (SigarException e) {   
                print(e.getMessage());   
            }   
        }   
    }   
  
    void print(String msg) {   
        System.out.println(msg);   
    }   
  
    // e)一些其他的信息  
    public void getEthernetInfo() {   
        Sigar sigar = null;   
        try {   
            sigar = new Sigar();   
            String[] ifaces = sigar.getNetInterfaceList();   
            for (int i = 0; i < ifaces.length; i++) {   
                NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);   
                if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress())   
                        || (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0  
                        || NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {   
                    continue;   
                }   
                System.out.println("cfg.getAddress() = " + cfg.getAddress());// IP地址  
                System.out   
                        .println("cfg.getBroadcast() = " + cfg.getBroadcast());// 网关广播地址  
                System.out.println("cfg.getHwaddr() = " + cfg.getHwaddr());// 网卡MAC地址  
                System.out.println("cfg.getNetmask() = " + cfg.getNetmask());// 子网掩码  
                System.out.println("cfg.getDescription() = "  
                        + cfg.getDescription());// 网卡描述信息  
                System.out.println("cfg.getType() = " + cfg.getType());//  
                System.out.println("cfg.getDestination() = "  
                        + cfg.getDestination());   
                System.out.println("cfg.getFlags() = " + cfg.getFlags());//  
                System.out.println("cfg.getMetric() = " + cfg.getMetric());   
                System.out.println("cfg.getMtu() = " + cfg.getMtu());   
                System.out.println("cfg.getName() = " + cfg.getName());   
                System.out.println();   
            }   
        } catch (Exception e) {   
            System.out.println("Error while creating GUID" + e);   
        } finally {   
            if (sigar != null)   
                sigar.close();   
        }   
    }   
  
} 